Trevor R. Stephan (born November 25, 1995) is an American professional baseball pitcher for the Cleveland Guardians of Major League Baseball (MLB). He played college baseball for Hill College and the University of Arkansas.
The New York Yankees selected Stephan in the third round, with the 92nd overall selection, of the 2017 MLB draft. and he signed for $800,000. After signing, Stephan made his professional debut for the Gulf Coast Yankees of the Rookie-level Gulf Coast League. After one game, he was promoted to the Staten Island Yankees of the Class A Short Season New York-Penn League, where he spent the remainder of the season, going 1–1 with a 1.39 ERA and 0.80 WHIP in ten games (nine starts).
On March 14, 2024, it was announced that Stephan would undergo Tommy John surgery to repair his UCL, ending his season.